Commit 8f05cd35 authored by Manivannan Sadhasivam's avatar Manivannan Sadhasivam Committed by Bjorn Helgaas
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PCI: qcom-ep: Add support for BME notification 

Add support to pass BME (Bus Master Enable) notification to Endpoint
function driver so that the BME event can be processed by the function.

Link: https://lore.kernel.org/r/20230602114756.36586-8-manivannan.sadhasivam@linaro.org


Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: default avatarLorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarKishon Vijay Abraham I <kishon@kernel.org>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
parent c47c74b7

drivers/pci/controller/dwc/pcie-qcom-ep.c

+1 −0
Original line number Diff line number Diff line
@@ -573,6 +573,7 @@ static irqreturn_t qcom_pcie_ep_global_irq_thread(int irq, void *data) 
	} else if (FIELD_GET(PARF_INT_ALL_BME, status)) {

		dev_dbg(dev, "Received BME event. Link is enabled!\n");

		pcie_ep->link_status = QCOM_PCIE_EP_LINK_ENABLED;

		pci_epc_bme_notify(pci->ep.epc);

	} else if (FIELD_GET(PARF_INT_ALL_PM_TURNOFF, status)) {

		dev_dbg(dev, "Received PM Turn-off event! Entering L23\n");

		val = readl_relaxed(pcie_ep->parf + PARF_PM_CTRL);